Promotic

CSng - method of the Pm object

Description:
Returns an expression converted to the value of the Single type.
This method is obsolete (but functional) and it is better to use the Pm.ToNumber method.
Syntax:
Single CSng(Single value)
Parameters:
value(Single) Any valid numeric expression.
Note:
The conversion functions can be used e.g. if you want some operation result to be expressed as a particular data type (rather than the default data type). For example, by using the CDbl or CSng method the calculation will be done in Double or Single data type in cases, when the integer type would normally be used for calcullations.
Use this method to provide conversion independent on local system settings from any other data type to the value of the Single type. Conversion of string value, where the decimal separator is "period" or "comma", will be completed correctly in both cases. Compare with VBScript.CSng.
If the expression lies outside the acceptable range of the Single subtype, then an error occurs.

If it is needed to convert the real number to the value of the String type regardless on local Windows OS setting (i.e. the real number would always have "full stop" or "comma" as a decimal separator), then the Pm.TransformValue method can be used with parameter nType = 120, 121 or 122.

This method is not functional in Web panels. The Pm.ToNumber method can be used.
See also:
Example:
JavaScriptVBScriptSelect and copy to clipboard

var n1 = Pm.CSng("3.14");
var n2 = Pm.CSng("3,14");   // In n1 is stored the same value as in n2
PROMOTIC 9.0.27 SCADA system documentation MICROSYS, spol. s r.o.

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